<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            td{
                border: 1px solid ;
            }
        </style>
       <!-- <script>
            for (var i = 1; i <=9 ; i++) {
                for (var j = 1; j <=i ; j++) {
                    document.write(i+"*"+j+"="+(i*j)+"&nbsp;&nbsp;&nbsp;");
                }
                //换行
                document.write("<br>")
            }
        </script>
-->
        <script>
         document.write("<table  align='center'>");

            for (var i = 1; i <=9 ; i++) {
                document.write("<tr>");
                for (var j = 1; j <=i ; j++) {
                    document.write("<td>");
                    document.write(i+"*"+j+"="+(i*j)+"&nbsp;&nbsp;&nbsp;");
                    document.write("</td>")
                }
                //换行
                document.write("</tr>")
            }
          document.write("</table>")


        </script>

    </head>
    <body>

    </body>
</html>